What does the FBI’s surveillance of Manafort mean?

Susan Hennessey, a fellow in the Governance Studies program and managing editor of the Lawfare blog, discusses the latest developments in Special Counsel Robert Mueller’s investigation, including the recently revealed wiretapping and surveillance of Paul Manafort, which began before the 2016 presidential campaign. She also explains that the Mueller investigation has reached a “critical stage” and that the Special Counsel may soon start making public allegations.